NDP25/4
Magnetically Coupled
Centrifugal Pump
Principle Applications
For continuous transfer/recirculation of aggressive chemicals, chilled water,
pure or precious liquids, in photographic, reprographic, X-Ray and industrial
processing equipment, particularly where space is limited.
Wetted Materials
Standard EPDM ‘O’ ring, optional Nitrile or Viton®
PP encapsulated magnet
Alumina ceramic spindle
PP/PPS housing
Features
Manufactured in chemical resistant thermoplastics - entirely non-metallic
Magnetic couplings provide an energy efficient thermal shield, minimizing heat transfer to pumped fluids.
Leak free continuous operation
Drip-proof IP22 motor housing
Zero maintenance
Options
NDP25/4
Port Details
NDP25/4
Port Details
230V 1ph 50/60 Hz
230V 1ph 50/60 Hz
Plain 21 mm inlet, 16.5 mm outlet
½” BSP M inlet, 3/8” BSP M outlet
110V 1ph 50 Hz
110V 1ph 50 Hz
Plain 21 mm inlet, 16.5 mm outlet
½” BSP M inlet, 3/8” BSP M outlet
Issue 3 – September 2008
Installation
Drawings not to scale
Dimensions in millimetres
NDP25/4
Specification
Model
Overall
height
(mm)
Overall
length
(mm)
Overall
width
(mm)
Weight
(kg)
Max body
pressure
(bar)
NDP25/4
101
185
112.5
2.1
1.4
Run-out flow
rate (l/min)
Closed
valve
head (m)
Temp
range
(degC)
*Max
specific
gravity
Motor
output
(watts)
22.5
60 Hz 23
3.5
3.8
-20 to
+85
1.0
18
50 Hz
*Assuming maximum viscosity of 30cp. Refer to Totton Pumps for higher viscosities and specific gravities
Performance
Note: These magnetically coupled pumps are designed for use with clean fluids.
Solids will cause jamming. Abrasives will reduce pump life and invalidate warranty.
NDP pumps are not self priming and are not designed to run dry.
The company reserves the right change specifications.
Issue 3 – September 2008
NDP25/4
Part List
Item Number
1
2
3
4
5
6
7
8
9
10
11
Description
Motor
Fan
Motor Cover
Screw
Drive Magnet
Nut
Spindle Housing
O-ring
Impeller
Pump Body
Screw
Quantity
Part Number
1
1
033322
1
043335
2
001739
1
023267
6
001564
1
033277
1
013290 (EPDM)
021056 (Viton)
003398 (Nitrile)
1
023220 (50 Hz)
023247 (60 Hz)
1
013385 (plain)
023261 (threaded)
6
001626
Totton Pumps Ltd.
Tel: +44 (0) 23 8066 6685
Fax: +44 (0) 23 8066 6880
Email: [email protected]
Web: www.totton-pumps.co.uk
Issue 3 – September 2008